摘要
利用基波分量近似法建立全桥LLC串联谐振直流直流变换器的数学模型,通过对电路基波分量进行傅里叶展开,将LLC串联谐振电路的非线性模型转变为线性等效数学模型,给出了详细的推导过程,分析了全桥LLC串联谐振变换器的直流电压增益特性,并确定了变换器的工作区域.
By employing fundamental component approximation,a mathematical model for a fullbridge LLC series resonant DC-DC converter is established.Through Fourier expansion of fundamental components of the circuit,the nonlinear model of LLC series resonant circuit is transformed into a linear equivalent mathematical model.A detailed derivation process is provided and direct voltage gain characteristics of full-bridge LLC series resonant converter are analyzed.Additionally,the operational region of the converter is determined.
作者
王凡
WANG Fan(Training Technology and Equipment Management Center,Shijiazhuang College of Applied Technology,Shijiazhuang,Hebei 050800,China)
出处
《石家庄职业技术学院学报》
2023年第6期15-22,共8页
Journal of Shijiazhuang College of Applied Technology
基金
石家庄职业技术学院院级课题(22YQ1005)。
关键词
基波分量近似法
LLC串联
谐振变换
电路
fundamental component approximation method
LLC series connection
resonant transformation
circuit
